Gas and air burning burner.



. W.l FENNEL.

GAS AND AJR BURNING BURNER.

APPLIUATION FILED Emme, 1914,

1,?0974386. Pai-,emma May 19, 1914.

- gas admitted to the mixing chamber, said j of gas admitted.

- section through the mixing .chamber showis shown applied to an incandescent light 'JACOB w. renner., or NEWBURGH, NEW rotaieL Gas Ann are BURNING BURNER.

Specification of Letters Patent.

Patented May 19, 1.914.

Application led February v20, 1914. Serial No. 819,977.

To aZZ whom it may conce-rn A Be it known that I, Jacois WV. FENNEL, a citizen of the United States, residing at Newburgh, in the county of Orange and State of New York. have invented certain new and useful. improvements in Gras and Air Burning Burners; and l do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in air and gas mixers and more; particularly to mixers of this character having gas and air burning burners.

The main object of the invention is to provide air supply means automatically controlled by the pressure of the inflowing gas.

Another obj ect is t0 rovide pressure controlled means for reguliiting the air supply to the .mixing chamber so constructed as to be reliable and to enhance the life of said means.

Another object is to provide simple and eliicient means for controlling the amount ofv means being adjustable to vary the quantity Another object is to provide simple and effective adjusting ineansfor the gas inlet.

With these and other objects in view, the invention consists of certain novel features of construction, and the combination and arrangements of parts as will be more fully described and claimed.

` In the accompanying drawings: Figure 1 represent-s a side elevation of. a burner equipped with this invention; Fig. 2 represents a longitudinal vertical section thereof; Fig. 3 represents an enlarged detail vertical ing the gas check in side elevation; Fig. 4 isA a transverse section taken on the line fil- 4: of Fig. 2; Fig. 5 is a similar view taken on the line 5-5 of Fig. 2; Fig. 6 is a detail side elevation of the apertured cylindrical casing; Fig. 7 is a Similar. view taken from the opposite side. A j

In the embodiment illustrated -the device burner, but it is to beiindcrstood that it may be used in connection with any form of gas burner to which it is adapted.

A gas supply pipe 1 is shown .p'ovided with the usual controlling cock 2 andrliaving is -pro-y .12 passes. This rod supply pipe 1 5.

ings 17 for admitting vided at its upper end with a laterally ex# tending base plate 4 herein shown circular and having a depending peripherally grooved flange 5 to which is secured a diaphragm 6 composedy of leather oi any other suitable material and having Vdisks or plates 7 and-S arranged on its opposite faces at the top thereof. .The disk 7 is disposed inside said diaphragm and is preferably made larger than disk 8 outside thereof, said inner disk having an .annular depending flange .7 peripherally grooved to receive a clamping cord or wire 9 which secures the flexible body portion of the diaphragm to said disk as is shown clearly 1n Fig. 2.

A dome shaped hood or shell 10 incases the diaphragm 6 and is secured to the base plate 4 in any suitable manner and has an opening l1 in its top through which a rod 12 is 'connected with the disk 8 and the upper end thereof beyond said shelly 10 is forkedforming a yoke 13 the arms of which have inturned lateral lin- (rers 13 for a purpose to be described. Couiled to the nipple 3 at one end is a curved by-pass pipe 14 lthe other end of which connects with an upwardly extending gas an upwardly extending cylindrical member 1Gl closed at its lower end and open at its upper end and provided in its side 'walls near its lower end with a'plui'ality of laterally spaced ing lengths. Thetop walls of theselgopeiiings 17 are disposed in the same plane'fflwhile the lower walls thereof are arranged in step-like relation as shown in Figs. 1, 6, and

7 whereby said openings gradually decrease i.

in length and are adapted to be brought successively into operation for a purpose to be described. If desired, the walls of the casing 16 between the openings 17 may be perforated asy shown at 18 inFigs. 1, G and 7 'and said apertures eoperate with the openair to a mixing chamherto be described. d

" vDepending-from the burner B is a fluid feed or supply pipe 19 with which is detacliably engaged a `pipe 20 which merges :it its lower end into an air and gasmixing chamber 21 which is formed by enla-rg ing said pipe 20 intermediately vof its ends.

Av cup like member 23 depends from the llpwer end of the mixing chamber 21 and has anepening in the bottom thereof through which is arranged on the` Mounted on this pipe -15 isair inlet openings 17 of vary` ico which `extends a pipe 24 which is connected with the pipe 15 being here shown detachably engaged therewith. On the upper end of the pipe' 24 inside the mixing chamber 21 is a gas su ply device 25 here shown of 'ovate form with its smaller end merging into the pipe 24, said pipe being provided with coarse threads which engage correfreely longitudinally therein without binding. This tubular shutter is provided atits upper end with a cap 27 which is slidable fon the tube 20 and is held in yieldable engagement with the upper end of the mixing chamber by means of a coiled spring 28 which bears at one end on said cap and at its other end against a nut 29 threaded on the feed pipe 19 and which is adjustable to vary the tension of the spring `and vconsequently the yielding movement of the shutter. This shutter is secured to the yoke 13, the fingers 13 of which are lsoldered 'orl otherwise rigidly connected with its cap 27 at diametrically-opposite points as is 'shown clearly in Fig.4 2 and by means of which( said shutter is moved vertically within the cylindrical rcasing 16 when the diaphragm 6 is expanded or collapsed, said shutter being controlled by the pressure of the gas under said diphragm. The ovate member 25 is made hollow and is provided inrits upper large end with slots 25 which extend at right angles to each other throughout theI4 greater portion ofthe length of said member 25 and 4form expansible and compressiblc lobes 25 which are adaptedA to open and' close for admitting more' or less gas to the mixing chamber as may befd'xesired, the opening of saidlobesAbeingtcontrolled by the cup-shaped member 23which is adapted to be screwed up or dow'non the stem' or shank 24 of said member for "forcing the lobes 2,5a

formed between the slots toward each otherV when adjusted in onedirection and which permits them to spread apart when `adjusted 1n the opposite direction, This reading of the 'lobes occurs owing to the act'that the member 25 is mal/.le of resilient material.

A channel bar 30 exten-ds longitudinally of the shuttcr23 'on the inner facethereof with its groove opening inwardly and which' is adapted to receive `a linger fil which pro-'1 jects laterally from the cup-shaped'member 23 thus forming a connection bctweeirjsaid member and the shutter, permitting the shutter to .move longitudinally:t:relative` thereto without changing the position' of said member 231 andar-'hen' the shutter is turned on .the tube 20 which may ,be readily accomplished by grasping it between the lingers, the cup-shaped member 23 is correspondingly turned and is thereby adjusted relative to the ovate gas check 25 for regulating the amount or gas to be admitted lthrough the slots 25 therein,

From the above description it will be obvious that the diaphram G willbe controlled by the gas pressure in the supply pipe l and through the rod 12 and yoke 13 control the position of the shutter 26 Without necessitating any apertures being made in said diaphragm thereby prolonging the life thereof.

In the operation of the device when the burner B is to be lighted` the parts are in the position shown in Fig. 2, the diaphragm 6 bein(r in collapsed position, it being under stood that the check 25 has already been adjusted to permit the desired quantity 'of gas to be admitted therethrough. Immeadmitted will-`iow through pipes l and 14 and pass directly through pipes 15, shank 24, check 25 and pipe 20 into the burner without any air having been mixed therewith and when this 'rich gas is lighted, no

explosion will occur such as usually takes place when mixed air and gas are ignlted. The gas also flows through pipe 1 and nipple L'il under the diaphragm 6 and the pressure thereof 4causes said diaphragm to raise the rod 12 and the yoke 13 connected therewith, thereby elevating the. shutter 2G and gradually opening the air inlet ports 17 in the cyl- .inder 1G and permitting the air to How into the mixing chamber and there combine with the gas which enters through the slots 25 in the check A5 the diaphragm gradually expands the shutter continues to be raised gradually exposing l the stop-like lower ends of the openings 17 and thus admitting more air to the mixing chamber,

the quantity admitted being controlled by the tension of the spring 28 'which has been previously adjusted to admit a' predetermined .quantity of air proportionate to the amount of gas admitted through the check member 25. j

I claim as my invention: 1. The combination with a gas burner, of a vibratory member controlled by the presvdiately the cook 2 is opened the rich gas sure of the gassupply, an air and gas mixing chamber Ahaving air inlet ports, a casing surrounding said chamber and having air inlet ports, a shutter telescopically engaged with said casing, means connecting said shutter with said vvibratory member whereby said shutter is opened or closed laccording to the pressure ot the gas supply, and means for regulating the uantity of gas admitted into said mixing Ichi mber.

. 2.y The combination with a gas burner, an air and gas mixing chamber connected therewith andhaving air inlet ports in its side walls, a gas supply pipe terminating'in an egg-shaped' member disposed in said mixing chamber and' having discharge openings therein, means for adjusting said discharge openings to vary the amount of gas admitted to said chamber, and means for controlling the amount of air admitted to said chamber.

3. The combination with a gas burner, of a gas supply pipe having a diaphragm chamber communicating therewith., a bypass pipe connected with said supply pipe, an air and gas mixing chamber connected with said burner, a gas supply member connected with said by-pass pipe and extending into said mixing chamber, said gas supply member having adjustable openings for varying the amount of gas admitted to said chamber; said chamber having air inlet ports, ai shutter for cont-roll ing said air inlet ports connected with and controlled by said vibratory member, and means connected with said shutter for varying the size of the gas 'inlet openings.

l. The combination with a. gas burner, of an air and gas mixing chamber, an eggshaped lgas supply member disposed in said chamber and having a screw threaded shank in threaded engagement with an opening in the bottom of said chamber and slotted to .form expansible and compressible elements,

and means for turning said chamber to control saidl expansible and compressible elements to vary the size of the gas outlet openings in said egg-shaped member. l

5. rThe combination with a gas burner, of an air and gas mixing` chamber, an eggshaped gas supply member disposed in said chamber and having a screw threaded shank in threaded engagement with an opening in the bottom of said' chamber and slotted to form expansible and compressible elements,

and manually operated means for turning said chamber and thereby adjusting said expansible and compressible elements to vary large'end, a

the size of the gas outlet egg-shaped member.

6. .The combinationwitli a gas burnerj of an air and gas mixing chamber provided with air inlets in its side Walls, shaped gas supply member disposed in said chamber and having its small end extending downwardly and terminating in a threaded shank engaged with an opening in the bottom of said chamber and openings in its large end, a gas supply pipe connected With said shank, a vertically movable revoluble shutter inclosing said mixing chamber and operable to control the air admitted thereto, and cooperating means onsaid shutter and chamber for turning the latterto adjustthe sizeof the openings in said gas supply member.

openings in said' 7. The combination with a gas burner, of

an air and gas mixing chamber provided with air inlets inrits side Walls7 an eggshaped chamber and having its small end extending downwardly and terminating in a threaded shank engaged 'ith an opening in the bottom of l.said chamber and openings in its gas supply pipe connected with said shank, a vertically movable revoluble shutter inclosing said mixing' chamber, said shutter haviiig a/guide disposed longitudinally on its inner face and tending laterally from said mixing chamber and engaged with said guide whereby the turning of said shutter will operate to turn an egggas supply member disposed in said' an element eX- said chamber to adjust the size of the openings in said gas supply member.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

Jaoos W. FENNEL. lVitnesses C. E. HUNT, L. O. HILTON. 

